Entering shiftily, grabs a fruit (9)
I believe the answer is:
tangerine
'fruit' is the definition.
(tangerine is a kind of fruit)
'entering shiftily grabs a' is the wordplay.
'shiftily' indicates an anagram (I've seen this in other clues).
'grabs' is an insertion indicator.
'entering' with letters rearranged gives 'tngerine'.
'tngerine' enclosing 'a' is 'TANGERINE'.
(Other definitions for tangerine that I've seen before include "something juicy being given to press" , "shade" , "Small citrus fruit with a loose skin" , "Small orange-like fruit (from North Africa?)" , "Kind of orange" .)